<%@ page language="java" import="java.util.*,java.sql.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'grade.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
   <%
   //加载驱动
   	Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		// 1.加载驱动
				try {
					Class.forName("com.mysql.jdbc.Driver");
				} catch (ClassNotFoundException e) {

					e.printStackTrace();
				}
   
				// 连接数据库
				try {
					conn = DriverManager.getConnection(
							"jdbc:mysql://localhost:3306/xingcheng", "llx", "123456");
					pstmt = conn
							.prepareStatement("select * from grade");

					rs = pstmt.executeQuery();
							// 循环显示查询结果
					
								while (rs.next()) {
									out.println(rs.getInt("id"));
								
							out.print(rs.getString("gname"));
					
								}
				

				} catch (Exception e) {

					e.printStackTrace();
				}
   
   
   %>
  </body>
</html>
